diff --git a/.idea/.gitignore b/.idea/.gitignore deleted file mode 100644 index 13566b8..0000000 --- a/.idea/.gitignore +++ /dev/null @@ -1,8 +0,0 @@ -# Default ignored files -/shelf/ -/workspace.xml -# Editor-based HTTP Client requests -/httpRequests/ -# Datasource local storage ignored files -/dataSources/ -/dataSources.local.xml diff --git a/.idea/misc.xml b/.idea/misc.xml deleted file mode 100644 index 79b3c94..0000000 --- a/.idea/misc.xml +++ /dev/null @@ -1,4 +0,0 @@ - - - - \ No newline at end of file diff --git a/.idea/modules.xml b/.idea/modules.xml deleted file mode 100644 index a7e6ad5..0000000 --- a/.idea/modules.xml +++ /dev/null @@ -1,8 +0,0 @@ - - - - - - - - \ No newline at end of file diff --git a/.idea/operatSystem.iml b/.idea/operatSystem.iml deleted file mode 100644 index f08604b..0000000 --- a/.idea/operatSystem.iml +++ /dev/null @@ -1,2 +0,0 @@ - - \ No newline at end of file diff --git a/.idea/vcs.xml b/.idea/vcs.xml deleted file mode 100644 index 94a25f7..0000000 --- a/.idea/vcs.xml +++ /dev/null @@ -1,6 +0,0 @@ - - - - - - \ No newline at end of file diff --git a/Assignment_1_120040077/source/.vscode/c_cpp_properties.json b/Assignment_1_120040077/source/.vscode/c_cpp_properties.json deleted file mode 100644 index 8357f90..0000000 --- a/Assignment_1_120040077/source/.vscode/c_cpp_properties.json +++ /dev/null @@ -1,16 +0,0 @@ -{ - "configurations": [ - { - "name": "Linux", - "includePath": [ - "${workspaceFolder}/**" - ], - "defines": [], - "compilerPath": "/usr/bin/gcc", - "cStandard": "gnu11", - "cppStandard": "gnu++98", - "intelliSenseMode": "linux-gcc-x64" - } - ], - "version": 4 -} \ No newline at end of file diff --git a/Assignment_2_120040077/source/hw2.cpp b/Assignment_2_120040077/source/hw2.cpp index c4dd641..5daaaf4 100644 --- a/Assignment_2_120040077/source/hw2.cpp +++ b/Assignment_2_120040077/source/hw2.cpp @@ -9,24 +9,24 @@ #include #define ROW 10 -#define COLUMN 50 -#define THREADNUM 11 +#define COLUMN 50 +#define THREADNUM 10 bool isWin = 0; bool isLose = 0; bool isExit = 0; pthread_mutex_t mutex; pthread_cond_t cond; -int logs_speed[ROW - 1]; -int logs_size[ROW -1]; -int left_end[ROW - 1]; -int right_end[ROW - 1]; +int logs_speed[ROW + 10]; +int logs_size[ROW + 10]; +int left_end[ROW + 10]; +int right_end[ROW + 10]; struct Node{ int x , y; Node( int _x , int _y ) : x( _x ) , y( _y ) {}; Node(){} ; -} frog ; +} frog, speed; char map[ROW+10][COLUMN] ; @@ -65,135 +65,124 @@ int kbhit(void){ void *logs_move( void *t ){ /* initilize the setting of logs*/ - int *log_id = (int*) t; + long log_id; + log_id = (long) t; + + while (isExit == 0 && isWin == 0 && isLose == 0) { - while (!isExit) { - pthread_mutex_lock(&mutex); - /* draw the river*/ - for (int i = 0; i < COLUMN - 1; i++) { - map[*log_id][i] = ' '; - } - if (*log_id % 2){ + + if (log_id % 2){ /* odd row move from left to right*/ - right_end[*log_id] = (right_end[*log_id] + 1) % (COLUMN - 1); - left_end[*log_id] = (left_end[*log_id] + 1) % (COLUMN - 1); + left_end[log_id] = (left_end[log_id] + 1) % (COLUMN - 1); } else { /* even row move from right to left*/ - left_end[*log_id] = (left_end[*log_id] - 1) % (COLUMN - 1); - right_end[*log_id] = (right_end[*log_id] - 1) % (COLUMN - 1); + left_end[log_id] = left_end[log_id] - 1; + if (left_end[log_id] < 0) left_end[log_id] += COLUMN - 1; } - if (right_end[*log_id] > left_end[*log_id]) { // the log is crossing the right boundary - for (int j = left_end[*log_id]; j < logs_size[*log_id]; j ++) { - map[*log_id][j] = '='; - } - }else { // the log is crossing the boundary - for (int j = left_end[*log_id]; j < COLUMN - 1; j ++) { - map[*log_id][j] = '='; - } - for (int k = 0; k < right_end[*log_id]; k++) { - map[*log_id][k] = '='; - } - } + pthread_mutex_lock(&mutex); - /* draw the two sides*/ - for (int j = 0; j < COLUMN - 1; j ++) { - map[ROW][j] = '|'; - map[0][j] = '|'; + /* draw the river*/ + for (int j = 0; j < COLUMN - 1; ++j) { + map[log_id][j] = ' '; } - /* Check keyboard hits, to change frog's position or quit the game. */ - if (kbhit()) { - char dir = getchar(); - if ( dir == 'w' || dir == 'W') { - frog.x = frog.x + 1; - } - if ( dir == 'a' || dir == 'A') { - frog.y = frog.y - 1; - } - if ( (dir == 's' || dir == 'S') && frog.x != ROW) { - frog.x = frog.x - 1; - } - if (dir == 'd' || dir == 'D') { - frog.y = frog.y + 1; - } - if (dir == 'q' || dir == 'Q') { - isExit = 1; - } + for (int i = 0, j = left_end[log_id]; i < logs_size[log_id]; ++j, ++i) { + map[log_id][j%(COLUMN - 1)] = '='; } - map[frog.x][frog.y] = '0'; + /* draw the two sides*/ + for (int j = 0; j < COLUMN - 1; j ++) { + map[ROW][j] = map[0][j] = '|' ; + } - /* Check game's status */ - if (map[frog.x][frog.y] == ' ') { // the flog falls to the river - isExit = 1; - } + for( int j = 0; j < COLUMN - 1; ++j ) + map[ROW + 1][j] = '-'; - if (frog.y <= 0) { //touches the right boundary - isExit = 1; - isLose = 1; - } - if (frog.y >= COLUMN - 1) { //touches the left boundary - isExit = 1; - isLose = 1; - } - if (frog.x == 0) { - isExit = 1; - isWin = 1; - } - /* Print the map on the screen */ + /* Check keyboard hits, to change frog's position or quit the game. */ + if (kbhit()) { + char dir = getchar(); + if ( dir == 'w' || dir == 'W') { + frog.x = frog.x - 1; + } + if ( (dir == 'a' || dir == 'A') && frog.y != 0) { + frog.y = frog.y - 1; + } + if ( (dir == 's' || dir == 'S') && frog.x != ROW) { + frog.x = frog.x + 1; + } + if ((dir == 'd' || dir == 'D') && frog.y!= COLUMN - 2) { + frog.y = frog.y + 1; + } + if (dir == 'q' || dir == 'Q') { + isExit = 1; + } + + /* switch the speed*/ + if ((dir == 'j' || dir == 'J') && speed.y != 0) { + speed.y = speed.y - 1; + } + if ((dir == 'k' || dir == 'K') && speed.y != COLUMN - 2) { + speed.y = speed.y + 1; + } + } + + /* Check game's status */ + if (map[frog.x][frog.y] == ' ') { // the flog falls to the river + isLose = 1; + } - printf("\033c"); - //Print the map into screen - for( int i = 0; i <= ROW; ++i) { - puts( map[i] ); - } - usleep(1000); - } - pthread_mutex_unlock(&mutex); - usleep(logs_speed[*log_id] * 6000); - pthread_exit(NULL); -} + if (frog.y <= 0) { //touches the left boundary + isLose = 1; + } -void *log_ini() { - /* initilize the setting of logs*/ - srand((unsigned int)time(NULL)); + if (frog.y >= COLUMN - 1) { //touches the right boundary + isLose = 1; + } - for (int i = 1; i < ROW; i ++) { - logs_speed[i] = rand()%20 + 10; - logs_size[i] = rand()%5 + 13; - left_end[i] = rand() % (COLUMN - 1); - right_end[i] = (left_end[i] + logs_size[i]) % (COLUMN - 1); + if (frog.x == 0) { + isWin = 1; + } - if (right_end[i] > left_end[i]) { - for (int k = left_end[i]; k < right_end[i]; k++) { - map[i][k] = '='; - } - }else { - for (int k = left_end[i]; k < COLUMN - 1; k ++) { - map[i][k] = '='; + if (isExit == 0 && isWin == 0 && isLose == 0) { + /* Print the map on the screen */ + if (frog.x == log_id && map[frog.x][frog.y] == '=') { + if (frog.x % 2) frog.y ++; + else frog.y --; } - for (int j = 0; j < right_end[i]; j ++) { - map[i][j] = '='; - } - } - } + // printf("\033[0;0h\033[2J"); + printf("\033[H\033[2J"); + //Print the map into screen + usleep(1000); + map[frog.x][frog.y] = '0'; + map[speed.x][speed.y] = '>'; + for( int i = 0; i <= ROW + 1; ++i) { + puts( map[i] ); + } + } + + pthread_mutex_unlock(&mutex); + usleep(logs_speed[log_id] * 6000 * (COLUMN - 1 - speed.y)/ (COLUMN - 1)); + } + pthread_exit(NULL); } + + int main( int argc, char *argv[] ){ pthread_t threads[THREADNUM]; pthread_mutex_init(&mutex, NULL); - pthread_cond_init(&cond, NULL); + srand((unsigned int)time(NULL)); // Initialize the river map and frog's starting position memset( map , 0, sizeof( map ) ) ; @@ -203,22 +192,35 @@ int main( int argc, char *argv[] ){ for( i = 1; i < ROW; ++i ){ for( j = 0; j < COLUMN - 1; ++j ) map[i][j] = ' ' ; + logs_speed[i] = rand()%20 + 10; + logs_size[i] = rand()%5 + 13; + left_end[i] = rand() % (COLUMN - 1); } + + /* initilize the setting of logs*/ + + for( j = 0; j < COLUMN - 1; ++j ) map[ROW][j] = map[0][j] = '|' ; + + /* set the speed changing slide bar*/ for( j = 0; j < COLUMN - 1; ++j ) - map[0][j] = map[0][j] = '|' ; + map[ROW + 1][j] = '-'; + + speed = Node(ROW + 1, 1); + map[speed.x][speed.y] = '>'; frog = Node( ROW, (COLUMN-1) / 2 ) ; map[frog.x][frog.y] = '0' ; - /* initialize the logs*/ - log_ini(); + /* set the speed changing slide bar*/ + + //Print the map into screen - for( i = 0; i <= ROW; ++i) { + for( i = 0; i <= ROW + 1; ++i) { puts( map[i] ); } @@ -226,13 +228,19 @@ int main( int argc, char *argv[] ){ /* Create pthreads for logs move and frog control. */ for (int i = 1; i < THREADNUM; ++ i) { - pthread_create(&threads[i], NULL, logs_move, (void*) i); + int rc; + rc = pthread_create(&threads[i], NULL, logs_move, (void*)i); + if (rc) { + printf("ERROR: return code from pthread_create() is %d",rc); + exit(1); + } usleep(200); } for (int i = 1; i < THREADNUM; ++i) { pthread_join(threads[i], NULL); } + printf("\033[0;0H\033[2J\033[?25h"); 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memory for PDF output out of 10000 (max. 10000000) + diff --git a/ass2report/Report.pdf b/ass2report/Report.pdf new file mode 100644 index 0000000..21a984e Binary files /dev/null and b/ass2report/Report.pdf differ diff --git a/ass2report/Report.synctex.gz b/ass2report/Report.synctex.gz new file mode 100644 index 0000000..4e00331 Binary files /dev/null and b/ass2report/Report.synctex.gz differ diff --git a/ass2report/Report.tex b/ass2report/Report.tex new file mode 100644 index 0000000..a1380f5 --- /dev/null +++ b/ass2report/Report.tex @@ -0,0 +1,30 @@ +\documentclass{article} +\usepackage[utf8]{inputenc} +\usepackage{amsmath} +\usepackage{color} +\usepackage{graphicx} +\usepackage{cases} +\title{CSC3150 Assignment2} +\author{Yu, Zhouliang 120040077 } +\date{October 2021} + +\begin{document} + +\maketitle + + + +\section{What I Learnt From the task} +\subsection{-lpthread} +Q: Why gcc does not link to the pthread by "\#include$<$pthread.h$>$", while we must use "-lpthread" +to compile the program +\\ +A: + +Having \#include $<$pthread.h$>$ in your code doesn't link in the library; it only includes the header for compilation. That allows the compiler to see the various structures, function declarations, etc. included. Having -lpthread actually causes the linking to be done by the linker. So the include tells the compiler what's available, and the -lpthread actually allows the program to call the functions within the library at runtime. +\subsection{pthread\_join} +Q: Why do we use pthread\_join in multiple thread programming +\\ +A: if your main thread(the thread executed by the main), exits before other threads, then it will cause bugs. With pthread\_join, the main thread is waiting until other thread exit. + +\end{document} \ No newline at end of file